Bug fixed in Http headers namming

ttcn/Http/LibItsHttp_TypesAndValues.ttcn

@@ -16,9 +16,9 @@ module LibItsHttp_TypesAndValues {
     import from LibItsHttp_XmlMessageBodyTypes all;
     
     const charstring c_header_host := "Host";
-    const charstring c_header_content_type := "Content-type";
-    const charstring c_header_content_text := "Content-text";
-    const charstring c_header_content_length := "Content-length";
+    const charstring c_header_content_type := "Content-Type";
+    const charstring c_header_content_text := "Content-Text";
+    const charstring c_header_content_length := "Content-Length";
     const charstring c_header_accept := "Accept";
     const charstring c_header_connection := "Connection";
     const charstring c_header_pragma := "Pragma";